Gas guard and lubricator for steam engines



Patented May 22, ll'

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lifllliiii JOHN Il?. RYDER, 0F KANSAS CITY, MISSOURI.

GAS GUARD AND LUBRCATOR FOR STEAIVI ENGINES.

Application filed December 13, 1920. Serial No. 430,368.

T 0 @ZZ whom t may concern.'

Be it known that I, JOHN l?, Rronn, a citizen of the United States,residing at Kansas City, in the countyof Jackson and State of Missouri,have invented a certain new and useful Improvement in Gas Guards andLubricators for Steam Engines, of which the following is aspecification.

My invention relates to improvements in gas `guards and lubricators forsteam engines.

VK eating fluid, such as wet steam, through the f "it exhaust conductoror conductors into the steam chest or chests, whereby the steam chestsand cylinders are lubricated when the steam is shut off in the ordinarymanner.

A further object of my invention is to provide novel means forincreasing the draft through the smoke stack and also excluding gas,line ashes and carbonaceous `material from passing from the smoke boxinto the exhaust conductor, thus avoiding carbonization and the cloggingup of the exhaust pipes, steam chests and cylinders due to the suckingintothe cylinders of such deleterious substances from the smoke boxthrough the exhaust pipes.

My invention is particularly well adapted for use onlocomotives, and isof particular value for locomotives that employ superheated steam.

A further object of myy invention is to provide a novel device of thekind described, which is cheap to make, ydurable and not liable to getout of order, which is eflicient in operation, and which can be readilyand economically applied to engines now 1n use.'

The novel features of my invention are hereinafter fully described andclaimed. f

In the accompanying. drawing, which illustrates the preferred embodimentof my invention as applied to a locomotive of a usual type,

Fig. lis a vertical cross section `through thel smoke box of alocomotive which is provided with my improvement, some of the partsbeing broken away.

Fig. 2 is an enlarged vertical sectional view of the two annular tubularmembers and some of the parts connected therewith.

Fig. 3 is a top view of the upper annular tubular member.

Fig. 4 is a top view of the lower annular tubular member.

Similar reference characters designate similar parts in the differentviews.

l designates the cab, 2 the boiler, 3 the smoke box, 4 the smoke stack,5 the petticoat, 6 the steam chests, 7 the cylinders, 8 the nozzlelocated in the smoke box 3 and discharging through the petticoat 5 intothe smoke stack 4f, and 9 the exhaust pipes respectively connected tothe steam chests 6 and discharginginto the lower end of the nozzle 8,and forming therewithr the exhaust conductor. rlhe parts just describedare the usual elements embodied in the modern type of Americanlocomotives. ln such locomotives7 particularly in those ofthesuperheated steam type there is great liability of the exhaust pipesclogging through the suction thereinto of fine ashes, gas and'carbonaceous materials. Furthermore carbon deposits in the steam chestsand cylinders also occurs due to the decomposition of the lubricatingoil therein, when the steam is shut off.

In order to prevent the burning of the oil in the cylinders and steamchests, when the engine is drifting and the steam is shut olf, I providemeans for forcing wet steam downwardly through the exhaust conductorsinto thesteam chests and cylinders. ln the preferred embodiment of myinvention, as shown in the drawing, such means consists in thefollowing` described parts.v

l0 designates an annular tubular member mounted concentrically on theupper end of the `nozzle S, and having one or more inwardly inclined anddownwardly inclined outlet openings ll, the latter being arranged sothat fluid under pressure in the member l0 will be discharged downwardlythrough the nozzle 8, and exhaust pipes 9 into the steam chests 6 andcylinders 7. Preferably the fluid employed is steam which is conductedfrom the boiler 2 by a pipe l2, which passes into the cab l andcommunicates with the annular passage 13 -in the member l0, whichpassage communicates with the outlet openings ll. ln the pipe l2 is ashut off valve 14; by which steam from the boiler may be shut otl, bythe engineer or fireman, from the lannular member l0.

,When the engineer is about to shut olf steam from the cylinders 7 inthe usual manner, he first opens the valve lll andthen shuts off thesteam with the usual throttle, not shown. The wet steam from the boilerwill then pass by the pipe 12 into the member 10v and thence through theopenings 11 downwardly through the nozzle 8 and pipes 9 through theexhaust passage into the steam chests 6 and cylinders 7. The Wet steamWillv charges into the smoke stack t and which encircles the dischargeend of the nozzle 8 and through which the nozzle discharges into thesmoke stack 1. This tubular fluid column prevents deleterious materials,such as hot gas, soot, and iine ashes being sucked into the cylinders 7,steam chests 6, exhaust pipes 9l and nozzle 8 when the engine isdrifting, and at the same time affords means for increasing the draft ofthe smoke stack.

Such means comprises, preferably the Ylollowing described parts.

15 designates an annular tubular member having an annular passage 16,said member being mounted concentrically upon the member 10, the passage16 being in communication With a steam pipe 17 having a valve 18 andconnected With the boiler 2. The member 15 is provided Withr suitablemeans /for projecting upwardly ay tubular column of steam comprising,preferably, two concentric rows of openings 19 and 2O in the top of themember 15, the openings ot one rovv, preferably, being staggered oroverlapping the openings oi the other row, thereby 'forming a tubularsteam column Which is di scharge-d into the smoke stack t through thepetticoat pipe 5. The tubular steam column received :trom the nozzle 8forms a guard for preventing the engine, when drifting, from sucking hotgas, smoke, soot, ashes or cinders `from the smoke box 3 into the nozzle8. Steam is preferably supplied to the annular member 15 through thesteam pipe 17, but it may be supplied from any other suitable source, aswith the exhaust trom the air pump on the engine, the air pump beingconnected at its exhaust outlet with the pas-y sage 16 by a pipe 21,which Vmay be provided vv-ith a shut oit valve 22. By opening 21 isconnected to the exhaust ,oi the air pump, the valve 22 rmay beeliminated, lor i1E present, it should be kept open.

I do not limit my, invention to the structure shown and described, asvarious modilications, Within the scope of the appended claims, may bemade Without'departing from the spirit of my invention.

What I claim is,

1. Inan a aratus o thev kind described r' the combination With theboiler, steam chest and exhaust conductor of an engine, oit' means bywhich steam from theboiler may be forced through the exhaust conductorItoward the steam chest, substantially vas set -forth.

2. In an apparatus of the kind de cribed, the combination With the steamchest and exhaust conductor connected therewith olf-an engine, anannular tubular member at .the discharge end oi said conductor andharii'ig means for discharging fluid therefrom through said conductortoward said steam chest, and means tor supplying iiuid toy sai d annularmember, substantially* asl set forth.

3. In an apparatus of the kind described, the combination With the steamchest, ex haust conductor connected therewith ,and boiler of an engine,of an annular tubular member at the discharge end of said conductorhaving means for discharging steam therefrom through said conductortoward said steam chest, and` means for supplying steam trom said boilerto said annular mem# ber, substantially as set forth.- v

L LfIn an apparatus of the kind described, the combination With thesteam chest, exhaust conductor connected 'therewith and boiler of anengine, of an annular tubular stack, boiler., and exhaust conductorarranged to discharge into thesmoke stack, oi

an annular tubular member concentricallly mounted on the upper end ofthe conductor and having'. one or more vdownwardly directed outletsarranged to discharge steam downwardly into the exhaust conductor, andf' a steam pipe connecting the boiler with said annular member,substantially as set forth.

In testimony whereof I have signed my name to this specification.

JOHN P. RYDER.

